Methods. PAR-2 expression by rat IVD cells and tissues
was examined using immunohistochemistry and western blot. Rat anulus fibrosus cells in monolayer culture were used to examine the biologic role www.selleckchem.com/products/SB-431542.html of PAR-2 in vitro. The effect of PAR-2-activating peptide (PAR-2(AP)) on the catabolic cascade was assessed by western blot and real-time PCR. The expression of PAR-2 by human IVD tissues at different stages of degeneration was determined by immunohistochemical analyses.
Results. PAR-2 was expressed by rat IVD cells and in both anulus fibrosus and nucleus pulposus tissues, PAR-2 expression was up-regulated by interleukin-1 beta (IL-1 beta). PAR-2(AP) significantly increased the release of IL-1 beta into the medium. Although PAR-2(AP) had no direct effect on matrix metalloproteinase-3 (MMP-3) and MMP-13 mRNA levels, PP2 mw treatment with PAR-2(AP) significantly up-regulated the mRNA levels
of a disintegrin and metalloproteinase with thrombospondin motif-4. The simultaneous administration of PAR-2(AP) and IL-1 beta synergistically up-regulated the mRNA levels of a disintegrin and metalloproteinase with thrombospondin motif-4, MMP-3, and MMP-13. The expression of PAR-2 was identified in human IVD tissues. The number of PAR-2-expressing cells was significantly elevated in advanced stages of IVD degeneration compared with those in early stages Dactolisib price of degeneration.
Conclusion. Our results demonstrate for the first time that IVD cells express PAR-2. The expression of PAR-2 is regulated by IL-1 beta stimulation. PAR-2 activation accelerates
the expression of matrix-degrading enzymes. PAR-2 may play an important role in the cytokine-mediated catabolic cascade and consequently may be involved in IVD degeneration.”
“An audit of the hospital notes and letters of patients with epilepsy sent to general practitioners was undertaken.
(a) To examine the frequency of important omissions in history taking and role of precipitants in seizure control, (b) to determine whether appropriate investigations had been performed and their results, (c) to assess whether letters sent to GPs contain all the appropriate information and advice, and to evaluate the waiting time for out-patient clinics and investigations.
This retrospective study was conducted in a teaching hospital setting. A computerised search of the clinical database of a consultant neurologist was performed on patients with epilepsy. The notes of the first 100 names selected randomly by the computer were analysed. The study period was during the years 1998-2005. Age range was from 17-72 years. The male:female ratio was 1:1.
Major deficiencies in documentation were identified in this study.”
“Phytochemical investigation of Hypericum nakamurai (Masamune) Robson has led to the isolation of three phloroglucinol derivatives 13.